diff options
Diffstat (limited to 'drivers/staging/comedi/drivers/das16m1.c')
-rw-r--r-- | drivers/staging/comedi/drivers/das16m1.c | 46 |
1 files changed, 17 insertions, 29 deletions
diff --git a/drivers/staging/comedi/drivers/das16m1.c b/drivers/staging/comedi/drivers/das16m1.c index b943c449b691..fce9acfe8084 100644 --- a/drivers/staging/comedi/drivers/das16m1.c +++ b/drivers/staging/comedi/drivers/das16m1.c @@ -63,8 +63,6 @@ irq can be omitted, although the cmd interface will not work without it. #define DAS16M1_SIZE 16 #define DAS16M1_SIZE2 8 -#define DAS16M1_XTAL 100 /* 10 MHz master clock */ - #define FIFO_SIZE 1024 /* 1024 sample fifo */ /* @@ -133,19 +131,18 @@ struct das16m1_private_struct { * needed to keep track of whether new count has been loaded into * counter yet (loaded by first sample conversion) */ u16 initial_hw_count; - short ai_buffer[FIFO_SIZE]; - unsigned int do_bits; /* saves status of digital output bits */ + unsigned short ai_buffer[FIFO_SIZE]; unsigned int divisor1; /* divides master clock to obtain conversion speed */ unsigned int divisor2; /* divides master clock to obtain conversion speed */ unsigned long extra_iobase; }; -static inline short munge_sample(short data) +static inline unsigned short munge_sample(unsigned short data) { return (data >> 4) & 0xfff; } -static void munge_sample_array(short *array, unsigned int num_elements) +static void munge_sample_array(unsigned short *array, unsigned int num_elements) { unsigned int i; @@ -208,11 +205,10 @@ static int das16m1_cmd_test(struct comedi_device *dev, if (cmd->convert_src == TRIG_TIMER) { tmp = cmd->convert_arg; /* calculate counter values that give desired timing */ - i8253_cascade_ns_to_timer_2div(DAS16M1_XTAL, - &(devpriv->divisor1), - &(devpriv->divisor2), - &(cmd->convert_arg), - cmd->flags & TRIG_ROUND_MASK); + i8253_cascade_ns_to_timer(I8254_OSC_BASE_10MHZ, + &devpriv->divisor1, + &devpriv->divisor2, + &cmd->convert_arg, cmd->flags); if (tmp != cmd->convert_arg) err++; } @@ -251,9 +247,10 @@ static unsigned int das16m1_set_pacer(struct comedi_device *dev, { struct das16m1_private_struct *devpriv = dev->private; - i8253_cascade_ns_to_timer_2div(DAS16M1_XTAL, &(devpriv->divisor1), - &(devpriv->divisor2), &ns, - rounding_flags & TRIG_ROUND_MASK); + i8253_cascade_ns_to_timer_2div(I8254_OSC_BASE_10MHZ, + &devpriv->divisor1, + &devpriv->divisor2, + &ns, rounding_flags); /* Write the values of ctr1 and ctr2 into counters 1 and 2 */ i8254_load(dev->iobase + DAS16M1_8254_SECOND, 0, 1, devpriv->divisor1, @@ -393,22 +390,13 @@ static int das16m1_di_rbits(struct comedi_device *dev, static int das16m1_do_wbits(struct comedi_device *dev, struct comedi_subdevice *s, - struct comedi_insn *insn, unsigned int *data) + struct comedi_insn *insn, + unsigned int *data) { - struct das16m1_private_struct *devpriv = dev->private; - unsigned int wbits; - - /* only set bits that have been masked */ - data[0] &= 0xf; - wbits = devpriv->do_bits; - /* zero bits that have been masked */ - wbits &= ~data[0]; - /* set masked bits */ - wbits |= data[0] & data[1]; - devpriv->do_bits = wbits; - data[1] = wbits; + if (comedi_dio_update_state(s, data)) + outb(s->state, dev->iobase + DAS16M1_DIO); - outb(devpriv->do_bits, dev->iobase + DAS16M1_DIO); + data[1] = s->state; return insn->n; } @@ -649,7 +637,7 @@ static int das16m1_attach(struct comedi_device *dev, outb(TOTAL_CLEAR, dev->iobase + DAS16M1_8254_FIRST_CNTRL); /* initialize digital output lines */ - outb(devpriv->do_bits, dev->iobase + DAS16M1_DIO); + outb(0, dev->iobase + DAS16M1_DIO); /* set the interrupt level */ if (dev->irq) |